步骤1:输入ASCII码 首先,我们需要让用户输入ASCII码。我们可以使用Scanner类来实现用户输入的功能。下面是需要使用的代码: importjava.util.Scanner;Scannerscanner=newScanner(System.in);System.out.print("请输入ASCII码:");intascii=scanner.nextInt(); 1. 2. 3. 4. 5. 上面的代码中,我们引入了Scanner类来...
importjava.util.Scanner;publicclassASCIIToCharConverter{publicstaticvoidmain(String[]args){Scannerscanner=newScanner(System.in);System.out.print("请输入一个ASCII码值:");intasciiValue=scanner.nextInt();charcharacter=(char)asciiValue;System.out.println("对应的字符为:"+character);scanner.close();}}...
int i='2'+'3'; System.out.println(i);//求和 ASCII表中十进制的和 Character类使用 一、isDigit('a')判断字符是否是数字 System.out.println(i); if(Character.isDigit('a')) { System.out.println("这是一个数字"); }else { System.out.println("这不是一个数字"); } 二、isLetter('a')判...
}publicstaticvoidshowASCII(intbegin,intend) {for(inti = begin; i < end; i++) {//System.out.print(i + ":" + (char) i + "/t");System.out.print((char) i + "/t");if(i % 10 == 0) { System.out.println(); } } }publicstaticvoidshowCHASCII() { showASCII(19968, 40869);...
We propose to change the internal representation of the String class from a UTF-16 char array to a byte array plus an encoding-flag field. The new String class will store characters encoded either as ISO-8859-1/Latin-1 (one byte per character), or as UTF-16 (two bytes per character)...
Character Set (or Charset) - Package java.nio.charset (JDK 1.4) 字符集 - java.nio.charset(JDK 1.4)包 JDK 1.4提供了一个新的包java.nio.charset作为NIO(New IO)的一部分,以支持Java程序内部使用的Unicode(UCS-2) 和以任何其他格式编码的外部设备之间的字符进行转换(例如, US-ASCII,ISO-8859-x,UTF-...
哈哈，你的character定义为String类型。可是看你写的这行character = (char)a;你把一个char类型转换为String类型，当然不可以了。下面的代码是转ascii的例子你可以参考下。import java.io.UnsupportedEncodingException;public class T { public static void main(String[] args) throws UnsupportedEncoding...
import java.io.UnsupportedEncodingException;public class T {public static void main(String[] args) throws UnsupportedEncodingException {t1();//ASCII转换为字符串t2();//字符串转换为ASCII码}public static void t1(){//ASCII转换为字符串String s="22307 35806 24555 20048";//ASCII码String[...
public class StringClass { public static void main(String[] args) { String str = new String("I am a lucky string."); //构造器 System.out.println("My length is " + str.length()); //length() System.out.println("My favoriate character is " + str.charAt(8)); //charAt() Output:...
String deduplication reduces the memory footprint of String objects on the Java heap by taking advantage of the fact that many String objects are identical. Instead of each String object pointing to its own character array, identical String objects can point to and share the same character array...